NSN 5305-01-326-6678

Part Details | CLOSE TOLERANCE SCREW

5305-01-326-6678 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Alternate Parts: SC310234, SC3102-3-4, HR24034, HR240-3-4, T00934, T009-3-4, T00934, T009-3-4, HR24034, HR240-3-4, 03A17434, 03A174-3-4, 03A17434, 03A174-3-4, 03A17434, 03A174-3-4, SLB14634, SLB146-3-4, SC310234, SC3102-3-4, 12374334, 123743-3-4, AJC165234, AJC1652-3-4, AIC165234, AIC1652-3-4, PBF141734, PBF1417-3-4, 5305-01-326-6678, 01-326-6678, 5305013266678, 013266678

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 28, 199001-326-667829294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

OFFSET CRUCIFORM (TORQUE SET)

Cross Reference | NSN 5305-01-326-6678
Part Number Cage Code Manufacturer
SC3102-3-406950ARCONIC GLOBAL FASTENERS & RINGS,INC.
HR240-3-473197HI-SHEAR CORPORATION
T009-3-417446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
T009-3-497928HUCK INTL INC
HR240-3-4L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
03A174-3-476823NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
03A174-3-41W025NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
03A174-3-40JRC1NORTHROP GRUMMAN TECHNICAL SERVICES,INC.
SLB146-3-416258SPACE-LOK, INC.
SC3102-3-40PTK6SPS TECHNOLOGIES INC
123743-3-480539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AJC1652-3-406725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
AIC1652-3-406725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1417-3-427624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5305-01-326-6678
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.320 INCHES MINIMUM AND 0.370 INCHES MAXIMUM
FASTENER LENGTH0.580 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.328 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM